Improvement in vessels for containing fluids under pressure



. G. H. WILDER. Vessel for Containing Fluids under Pressure.

No. l96,408. Patented Oct; 23, I877.

W45 5 f' WM UNITED STATES PATENT OFFICE.

CHARLES H. WILDER, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO HIMSELF AND OOLLETT LEVENTHORPE, OF NEWV YORK, N. Y.

IMPROVEMENT IN VESSELS FOR CONTAlNlNG FLUIDS UNDER PRESSURE.

Specification forming part of Letters Patent No. 196,408, dated October23, 1877 application filed February 1, 1877.

To all whom it may concern:

Be it known that I, CHARLES H. WILDER, of Boston, in the State ofMassachusetts, have invented an Improvement in Vessels for (JontainingFluids under Pressure, of which the following is a specification:

Vessels have heretofore been made of metal adapted to sustain a veryheavy pressure, such as from thirty to seventy thousand pounds persquare inch; but in such vessels the pressure expands the metal, and atthe same time the gases or fluids penetrate the metal, more or less, andwith some fluids the metal fails to retain them, as such fluids escapethrough the pores of the metal, and consequently such fluids cannotbestored under these heavypressures for subsequent use, as the pressurewill gradually lessen. Besides this, the cohesive power of the metal isinjured by the repeated changes of pressure altering the molecularstructure of the metal until the vessel either bursts or cracks, so thatthe gases or fluids escape.

There is also an apparent electric action in connection with the riseand fall of pressure, which appears to aid in the destruction of thevessel, but the rationale of the operation is not fully understood.

My invention isintended to prevent the gases or fluids under pressurepenetrating the metal, and to intercept any electric action, and at thesame time allow for the expansion and contraction of the metallic vesselresulting from changes in pressure.

To efiect this object I line the metallic vessel or reservoir withpaper. I prefer and use Manila paper, free from clay and other foreignsubstances, and I either cause said paper to adhere to the interior ofthe pressiue-vessel by an adhesive substance, such as a siccative oil orvarnish, or I retain the layer of paper by an interior lining of sheetmetal.

The paper lining may be applied in the form of pulp, and suitablypressed and dried, and the paper fiber may be vegetable or mineral, suchas asbestus or soap-stone.

In practice, I find that the pressure upon the paper lining causes thesame to become more compact the greater the pressure, and that thefluids do not pass the same, but they are retained with little or nodeterioration or change of pressure; the metal vessel is protected frominjury, because the gases do not permeate the same and, the paper beinga good non-conductor, there is no electric action between the gases andthe metal vessel.

Figure 1 in the drawing represents avessel, a, with a lining of paper,I); and Fig. 2 is a similar section with the addition of a sheetmetalsupport, 0, inside the paper, to keep it in place.

I am aware that reservoirs for gas have been made of paper, and thatvessels for liquids under pressure have been tinned on the inside orporcelain-lined.

I claim as my invention- 1. A closed metallic reservoir for holdingfluids or gases under pressure, lined throughout with Manila or otherpaper, substantially as and for the purposes set forth.

2. The combination, with a metallic reservoir for holding fluids orgases under pressure, of a lining of paper, and an interior support, 0,for the same, of sheet metal, substantially as set forth.

D Sligned by me this 29th day of January, A.

CHARLES H. WILDER.

Witnesses Gno. T. PINOKNEY, OHAs. H. SMITH.

